Printing-press fountain



C. L. WELSH.

PRINTING PRESS FOUNTAIN. APPLICATION FIL'ED mac. 11. 1918 1,31%,174. PatentedSpt.2,1919.

INVENTOR.

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CLYDE L. WELSH, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO MILLER SAW- TRIMMER COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

PRINTING-PRESSFOUNTAIN.

Patented Sept. 2, 1919.

Application filed December 11, 1918. Serial 110. 266,264.

To all whom it may concern:

Be it known that I, CLYDE L. WELSH, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Printing-Press Fountains, of which the following is a specification.

This invention relates broadly to improvements in printing presses and particularly to an attachment for tains.

The primary object of this invention is to provlde a device of the character herein described which will confine the ink Within certain limits in the fountain with a view of economizing in the use of the same.

Another object of this invention is to provide a device of the type set forth which is so constructed and mounted as to be under continual pressure within the fountain and against the ink-supplying roll.

Other objects of this invention are to provide an attachment for printing press fountains which is simple in its construction and arrangement, strong, durable and efficient in its use, and inexpensive to manufacture.

To the accomplishment of these and such other objects as may hereinafter appear, the invention consists of the novel construction, combination and arrangement of parts here in specifically described and illustrated in the accompanying drawing wherein is shown an embodiment of the invention.

In the drawing forming a portion of this specification and wherein like numerals of reference designate corresponding parts throughout the several views:

Figure 1 is a detail sectional view illustrating the fountain, ink-supplying roller and embodying my invention.

Fig. 2 is a top plan view of the attachment.

Fig. 3 is a perspective view of the pressure lever with the spring attached.

Fig. 4 is a perspective view of the fountain together with ink-supplying roller and associated parts with portions broken away and illustrating my improved devlce mounted thereon.

Referring more in detail to the drawing 1 represents the fountain and 2 the ink-supplying roller both of which are carried by the brackets 3 in the usual well-known manner.

printing press foun In printing practice the ink is ordinarily placed in the fountain 1 and equally distributed throughout the length of the roller 2. In many printing operations it is found not to be necessary to distribute the ink along the entire length of the roller 2, for the successful operation of the printing press. j

Ininy improved attachment, 1 provide a division plate 4 which is mounted in the fountain 1 and slidably movable therein and which will confine the ink to only a portion of the roller 2 as may be desired, thereby effecting great economy in the useof the ink.

The division plate 4 may be made from metal, wood, composition or of any material desired. The rear side 5 of the division plate 4 is so shaped and constructed as to fit snugly against the inner wall of the fountain 1, and the under side 6 of the division plate 4 is provided with a curvature 7, exactly commensurate with the curvature of the roller 2 against which it rests as illustrated in Fig. 4 of the drawing.

The top of the division plate 4 is formed with a groove 8 in the rear end of which the pressure lever 9 is pivotally connected by means of the rivet 10.

A flat spring 11 is attached to the bottom 12 of the groove 8 by the screws 13, the free end 14 thereof acting against the under side 15 of the pressure lever 9 tending to force same upwardly.

A round rod 16, extending over the fountain 1, is attached at its ends to the brackets 3 by the bolts 17. The pressure lever 9 is provided with the rounded notch 18 which is adapted to engage the rod 16 and prevent the movement of the pressure lever 9 up wardly.

The pressure lever 9 is provided with a suitable aperture 19 at its rear end for the passage of the rivet 10 for pivotally connecting the pressure lever 9 to the division plate 4 in the groove 8.

A tension screw 20 threadably mounted in the pressure lever 9 and acting against the free end 14 of the spring 11 permits the adjusting of the spring 11, if more or less tension is desired.

In practice the device is attached to the printing press by securing the rod 16 to the brackets 3, and placing the division plate 4 in the fountain 1 and against the roller 2. While the division plate is being placed in the fountain the pressure lever 9 is held down firmly in the groove 8.

.When the pressure lever 9 is released the From the foregoing description taken in connection with the accompanying drawing the operation and construction of the device will be readily apparent to those skilled in the art to which the invention apperta'ins, and While describing the method of operation together with the construction of the device which is now considered to be the best embodiment thereof, it is to be understood that the device shown is merely illustrative and that various changes in the form, proportion and minor details of construction may be resorted to as come within the scope of the claims hereunto appended.

What I claim as new and desire to secure by Letters Patent is 1. An attachment for printing-press fountains comprising a rod secured to the said fountain,ga division plate mounted in the said fountain, apressurelever pivotally connected to the said division plate and en copies ofthis patent may be obtained for gaging the said rod, and means engaging the said division plate and the said pressure lever for tensioning the said division plate in the said fountain for the purpose set forth.

2. An attachment for printing-press fountains comprising a rod secured to the said fountain, a division plate slidably mounted in the said fountain, a pressure lever pivotally connected to the said division plate and engaging the said rod, a spring attached to the said division plate and engaging the said pressure lever, and means for adjustably tensioning the said spring, substantially as described and for the purpose set forth.

3. The combination with a printing-press fountain and ink-supply roller, of a division plate slidably mounted in the said fountain and against the said ink-supply CLYDE L. WELSH.

five cents each, by addressing the "Commissioner of Patentu, Washington, D. G. 

